| 发明名称 |
METHOD OF FILLER SEPARATION FROM PAPER-MILL CIRCULATION WATERS |
| 摘要 |
<p>A process for separating fillers from paper-making circulated water by flotation, characterised in that the paper-making circulated water is treated by 1. the addition of water-soluble salts of trivalent metal ions to give pH values of between 4.5 and 9 and 2. flotation after the addition of 5 to 100 g of anionic surfactants per m<3> of circulated water.</p> |
| 申请公布号 |
CS8801662(A2) |
申请公布日期 |
1990.06.13 |
| 申请号 |
CS19880001662 |
申请日期 |
1988.03.14 |
| 申请人 |
HENKEL KOMMANDITGESELLSCHAFT A,DE |
发明人 |
HORNFECK KLAUS ING.,DE;VON RYBINSKI WOLFGANG DR.,DE |
| 分类号 |
D21C5/02;B03D1/002;B03D1/012;B03D1/018;D21F1/70;(IPC1-7):C02F1/24 |
主分类号 |
D21C5/02 |
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